JEE CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

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Analyzing +4 | -1

The correct statements from the following are:

(A) The decreasing order of atomic radii of group 13 elements is

{Tl}>{In}>{Ga}>{Al}>{B}

(B) Down the group 13 electronegativity decreases from top to bottom

(C)

{Al}

dissolves in dil.

{HCl}

and liberate

{H}_2

but conc.

{HNO}_3

renders

{Al}

passive by forming a protective oxide layer on the surface

(D) All elements of group 13 exhibits highly stable +1 oxidation state

(E) Hybridisation of

{Al}

\left[{Al}\left({H}_2{O}\right)_6\right]^{3+}

ion is

\mathrm{sp}^3 \mathrm{d}^2

Choose the correct answer from the options given below:

View answer and explanation

Correct option: A

Option A ((C) and (E) only) is correct because only statements C and E are factually accurate regarding the properties of group 13 elements.

JEE CHEMISTRY MCQ: 13 TH GROUP ELEMENTS (P-BLOCK)

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